state of aggregation

例句：

1. 1.The city's population is aggregating daily.
   该城市的人口每天都在增加。
2. 2. The data shows that the aggregation of the two companies has led to a significant increasein profits.
   数据显示，两家公司的合并导致了利润的显著增长。
3. 3. The scientists are studying the aggregation of different species in the ecosystem.
   科学家们正在研究生态系统中不同物种的聚合情况。